Implement queue by using stack
Define how to implement queue by using stack?
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A queue can be implemented with two stacks as follows:
a. An element is inserted within the queue through pushing this within stack 1
b. An element is extracted by the queue through popping this from the stack 2
c. When the stack 2 is empty then each element currently within stack 1 are transferred to stack 2 but within the reverse order
d. When the stack 2 is not empty only pop the value by stack 2.
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